This Swanson product is formulated with science and crafted with care. Our vitamin D complex combines vitamin D2 and vitamin D3, delivering 2,000 Iu (50 mcg) of each per capsule to support overall wellness. This daily supplement supports bone health by aiding calcium absorption, helping maintain healthy bones and teeth while also contributing to immune resilience. Designed for convenient use, it fits easily into daily routines and pairs well with other supplements. This non-gmo formula offers versatile dietary support for ongoing wellness. We carefully select and source ingredients and work only with trusted partners. Backed by over 150 years of combined experience, our team of pharmacists, scientists, nutritionists, and quality experts ensures every product is tested for guaranteed purity, potency, and reliability.